Brake mechanism for railway cars



Nov. 27, 1928. l

y o. c. DURYEA BRAKE MECHANISM FORVRAILWAY CARS Filed May 5, 1925 2 sheets-sheet 1 WLM,

Nov. 27, 1 928.

- 1,693,197 O. C. DURYEA BRAKE MECHANISM FOR RAILWAY CARS Filed May 5, 1925 `2 Sheets-Sheet 2 Patented Nov. 27, 1928.

UNITED STATES PATENT ol-FICE OTHO, C. ,DURYEA, 0F WATERBURY, CONNECTICUT, ASSIGNOR TO 0. C. DURYEA COR- VSPORATION, 0F WILMINGTON, DELAWARE, A CORPORATION OF DELAWARE.

BRAKE MECHANISM FOR RAILWAY CARS.

Application filed May 5,

This-invention relates to brake mechanism for railway rollingA stock.

It has heretofore been proposed to provide a railway car comprising a body portion mounted forlongitudinal movement relative I to the running gear, said movement being yieldmgly resisted by suitable means, where' by impact shocks or blows such as are due to ment relative to the car body and running gear, whereby damage to the'car structure and the ladingv is' prevented. Such a structure is disclosed and claimed in my co-pending application Serial No. 26,267, filed April 27, 1925.

In car structures of thev'above types the elements constituting the brake mechanism, if the car is provided with brakes, must have relative longitudinal movement if certain of 'said elements are ixedly atached to a part -or parts of the car structure adapted for i movement relative to other parts of the structure. For example, if the car structure is of the longitudinally movable body type, certain elements of the brake mechanism, such as the brake mast, should be mounted for movement with the car body, while certain other ele-4 ments, such as the brake beams and-brake shoes, should be mounted for movement with the running gear. Relative movement lwould therefore take place between these elements of the brake mechanism whenever relative movement occurs between the car body and the running gear.

Accordingly it is an object ofzthe present invention to provide novel brake mechanism wihch is so constructed that relative longitudinal movement between certain parts of the car structure to which one or more elements of said brake mechanism are iXedly secured does not interfere with the proper functioning of the brakes at any time.

Another object of. the invention is to provide a train air line .composed of sections which are provided with novel connecting means whereby relative movement between said sections will not interfere with the operation of the air control portions of the brake mechanism.

A further object of the invention is to pro- 1925. Serial No. 28,243.

vide novel means whereby relative movenient between brake elements ixedly secured to the running gear is not transmitted to the elements of the brake mechanism ixedly secured to another part or parts of the car structure having longitudinal movement relative to said running gear. f

Other objects which will appear more fully hereinafter, include the provision of a simple and rugged brake mechanism which is inexpensive to manufacture and which conforms to the standard-brake construction employed at the present time.

The invention will be readily understood by reference to the accompanying drawings, which drawings', however, are for the purpose of illustration only and are not to be reference being had to the appended claims `for this purpose.

In the drawings,

Figs. l and la are top plan views illustrating a car structure embodying the present invention, certainl elements of the brake mechanism being omitted from the left-hand end of Fig. 1 and certain elements of the car structure being omitted from Fig. l in the interest of clearness;

Fig. Q is an enlarged detail view in transverse section illustrating one manner in which certain elements ofthe brake mechanism may be secured to the car body;

Fig. 3 is an enlarged detail view illustrating one forni of flexible connection that may pe employed between sections of the train air Fig. 4 is a detail view illustrating a second type of flexible connection for the air line sections; and

Fig. 5 is a detail view illustrating another tiexible connection which may be employed.

Referring to the drawings, wherein like reference characters refer to like parts throughout the several views, the car structure, on which is mounted the brake mechanism constituting the subject matter of the present invention, is of the longitudinally movable body type, .It is to be expressly understood that the particular manner inw which certain structural elements of the car are mounted for longitudinal movement relative to another element or elements of the same, constitute no part of the present invention.

responds to that described and 'claimed in myfpd-pending application Serial No. 27,040, liled April 30, 1925, and comprises running gear including a center lmember 10. Prefr erably this center member is formed of tWo longitudinally extending U-shaped channel members 11 (Fig. 2), which are mounted with the flanges of the same extending down- Wardly, and rigidly secured in any suitable '.10 way to the opposite ends of the channel members 11, are draft sills 12 which carry draft gears 13 and couplers 14 of the usual or any suitable type. As will be understoodby those skilled in the art, the draft sills 12 are 15 mounted in the usual manner on truck bolsters 15, one of which is partially illustrated in Fig. l, the bolster at the opposite end of the car structure being omitted from Fig.' 1 for thesake of clearness. Mountedin any suitable manner on the running gear abovefdescribed and adapted for limited longitudinal movement relative thereto, is a body structure which preferably includes yside sills 16, end sills 17, and a plurality ofutransverse supporting members includingbolsters 18 and any suitable number of crossbearers 19. As shown, the bolsters 18 are rigidly secured at their outer ends to the side sills 16 and have sliding engagementwith the draft sills 12. Preferably the cross bearers 19 (F ig.2) are rigidly attached, as by means of rivets, to the side' sills 16 and have 'sliding frictional engagement with the upperchannel member 11 in a manner described and claimed in my copending application'Serial No. 27,041, filed April 3o, 1925. f

Suitable means are provided for yieldingly vresisting relative longitudinal movement between the car body and the running gear. For example, a pair of coil springs 20 may be operatively secured to the .center member and to the bolsters `18 for this purpse, as is described and claimed in my co- M pending application Serial No. 27,040.

The brake mechanism constituting the subject matter of this invention is mounted partly on the running gear and partly on-A the car body previously described. The

50 portion of the brake mechanism mounted on the running gear'preferably includes brake shoes 21 whichare secured in the usual manner to theopposite ends of the brake beams 22. Pivotally secured to each of the brake 5.5 beam struts or spreaders 23 are brake beam levers 24 'and 2 5. Preferably the outerbrake beam lever 25 is pivotally 4secured to a fulcrum member 26, which member is. attached v'15. 'Pivotally attached to the adjacent ends `of the b'rake beam `levers 24, 25 is a link'27' for im artingl motion transmittedfrom* one brake` ever tothe other brake lever. '.jAtf

. tached in the usual manner to the. other end d5-gef the vbrake beam lever 24, is an airbrake rod 28. It will be understood that theabove described elements, which vvilly be referred vto collectively as truck brake rigging, are .the

same at the opposite ends of the car, and that the present invention is not limited to the use of any particular form of truck rigging since a variety lof means may be satisfactorily employed 4for this purpose. The adjacent .inner ends of the air brake' rods 28 are connected by a flexible member which, in the form shown, is constituted by a chain 29. Two sections 30 of the train air line, one adjacent each end ofthe car structure, is

. fixedly secured to the running gear and preferably to. the draft sills 12, as by' means of..

is mounted in a position to extend transnol vcrsely of the car structure and is secured to the cross bearers, as by means of bolts 36, Which extend through suitable strengthening members 37 .that maybe constituted by angle irons. The brake cylinder 35 isv provided with the usual-piston (not shown) and a piston rod-38 Whiclrcarries at its outer -end a rotatably mounted pulley or sheave 39, the latter being preferably mounted to rotate about a vertically disposed pin 40 suitably journalled in said I `piston rod 38. Rotatably mountedonop-L posite sides of the' piston vrod 38 in the plane ofthe pulley 39, are a pair of pulleys 41 which are suitably secured to the body structure by means of a casting 42 which may be attached in any suitable manner to the vcross bearers 19. The flexible member' 29 connecting the adjacent inner vends of the. air brake rods 28 has rolling engagementv with eachV of the pulleys- 39 Vand 41. 'The' .y i'

bight of this llexible member passes around the pulley 39 and the opposite ends of the same extend inwardly and around the pulleys-41 to said rods. 'The casting or.

strengthening member 42 is preferably provided with an integrally formed portion 42a which constitutes a support for a bell .crank lever 43 mounted for pivotal movement about a vertical axis. The short arm of said bell crank lever 43 is secured, as by means i of a clevice 44 and a flexible member 4 5, to 1n any 'desired manner to the truck bolster.

tends outwardly toward one end of the can,

and is provided on its outer end with a ilexible portion 46El that is secured in .a suitable manner td-the foot of the bralremast indil cated in section at 47, Fig. l. In communication with the air cylinder 32 1s a section `of the train air line composed of alongibody and the air line sections attached to the running gear, suitable flexible connections are interposed between said sections. As shown more clearly in Figs. l and 3, said flexible connections may comprise two sections of air hose 50 which are secured in any suitable manner to the adjacent ends of the air line sections 30 and 48, 49 and are provided with the usual or any other suitable coupling members 5l. If desired, only one section of hose 50 need be employed, as is illustrated in Fig. 4, one of the coupling members 5l being directly secured to the train. air line section 30, or to the section 48, 49.v If it is not desired to employ a hose as a part of the flexible connection between the sections of the train air line, arigid pipe 52 (Fig. 5) may be provided at its opposite ends with suitable universal joints 53, which joints are connected respectively to the air line pipe 30 and 48, 49. The flexibility of the pipe 48 'will compensate for the transverse shortening of this Aflexible connection, due torelative movement between the movable parts of the car structure. An air release line-54, which leads from a suitable point in the train air line to one end of the car body, is preferably provided for hand air control of the brake mechanism in a manner well understood in the art.

Operation-A detailed description of the operation of all of the elements of the braking Imechanism is unnecessary since said mechanism conforms closely'in operation to 4the brakes now employed in the usual type of railway.cars. It is pointed out, however, that relative longitudinal 'movement of the car body in either direction is not transmitted to the brake rods 28 and consequently does not affect the position of the brake shoes 21 since the flexible member 29 has rolling engagement with the pulleys 39, 4l, whereby relative movement of said pulleys, longitudinalIy of the running gear, in either direction. does not vary or change the tension of said.

flexible member. If air is admitted into the brake cylinder 35`to move the piston rod 38 outwardly from said cylinder, this movement is transmitted through pulley 39 to flexible member 29 and brake rods 28 to set the brakes as illustrated in Figs. 1 and la.- The hand, brakes are set byy rotation Aof the mast 47, which motion is transmitted by a flexible member 46a, hand brake rod 46, and bell crank lever 43 to the flexible member 45, whereby motion is impartedA to the brake rods 28 to set the brakes. Relative movement of Vout departing from the-spirit of the inventhe car body does not disrupt the sections of the train air line since the flexible connections interposed between sa-id sections permit this relative movement without danger of breakage in the line.

It will thus be perceived that there is provided brake mechanism for a railway car of thelongitudinally movable body type which is extremely simple in construction, which closely conforms to brake mechanism at presentemployed and which is adapted to function at all times regardless of relative longitudinal movement between the elements of said mechanism. Various changes may be made in thc details of construction withtion as defined in the following claims.

That is claimed is:

l. In combination with a railway car comprising running gear including a center member and a body mounted for longitudinal movement relative to said running gear, brake mechanism for said car including truck brake rigging mounted for movement with said ruiming gear, brake rods having operative engagement with said truck rigging, a flexible member connecting said rods, means including@ b ake cylinder mounted for movement with said body, a piston rod for said cylinder, and means carried by said rod and having rolling engagement with said 'flexible member.

2. In combination with a'railway car comprising running gear including a center member and a body mounted for longitudinal movement relative to said running gear, brake mechanism for said car including truck brake rigging mounted for movement with said running gear, train airline sections mountedfor movement with said running' gear, means mounted for movement with said body and having operative engagementwith saidtruck rigging, saidmeans including a'train air line section, and means connecting' said air line sections permitting longitudinal movement therebetween.A

3. In combination with a railway car comprising a center member and a body mounted for longitudinal movement relative to said member, brake mechanism for said car including fluid pressure means. meansactuated by said pressure means including brake shoes,

a lever mounted'fo'r movement with said body, means connecting said lever with said second named means, a brake mast mounted for movement with said body, and means connecting said mast and lever.

4. In'combination with a railway car comprising a center member and-a body mounted for longitudinal movement relative to said member, brake mechanism for said car in'- cluding fluid pressure means, means actuated by said pressure means including brake shoes, a leverT mounted for movement with said body, flexible means connecting said prising a center member and a body mounted lever with said second named means, a brake mast mounted for movement with said body, and means connecting said mast and lever.

5. In combination with a railway car coml G prisingfa center member and a body mounted for longitudinal movement relative'to said member' brake mechanism for said car 1nclad-ing' brake elements fiXedly secured to.

said body and movable therewith, brake 10 means fxedly secured to said center member for movement therewith, and means connectin r said first named means and one or more o `'said elements permitting relative longitudinal movement therebetween.

6. In combination with a railway car com- 25 ative longitudinal movement therebetween.

VIn' combination'with a vrailway car hav- 1 inga'brody mounted for relative longitudinal' movement'n the running gear thereof, brake mechanism including means carried by the running gear, lav flexible member connected thereto'fand means carried by said body and having operative engagement with said flex-l ible member regardless yofthe relative movement between said 'running gear and body.

8. -In combination with a railway car .in-

cluding running gear andv a body mounted for longitudinal movement relative to said running gear, truck-brake rigging including brake beams c arried by the running gear and brake rodslhaving operative engagement with said brake beams, a flexible member connecting the adjacent ends of said rods, means including a brake cylinder'secured to said body, a iston for said cylinder, and means secur'ed to said piston and having rolling engagement `with said flexible member.

' 9. A railway car including running gear, a body mounted for longitudinal movement relative to saidA running gear, and brake mechanism therefor, said mechanism including elements carried by said running gear,

l a flexible memberhaving operativeengagement with said elements, and means carried by the body and operatively engaging said' yBfr-flexible member for maintaining said member under a predetermined tension regardless o f movement of the body'relative to said runnlno' gear,` l.

10.Ii1 combination with a railway car having' running gear and a body-mounted t for longitudinal-.movement relative to said run-ning gear, 'brake mechanism including brake rods carried by the running gear,

means. connecting saidV rods, means carried.

by said body including a member adapted .mounted secure to the body of said car including a -Y fluid actuated member, and means operatively connecting said member 'to said first named means whereby said brake mechanisnrf is operable regardless of the relative posiy tion of said body.

12. In combination with a railway carcomprising running gear. and a body mounted 'for longitudinal movement relative to said'A running gear, brake'mechanism for said. car includlng means fixedly secured to' the running gear and movable therewith,

vand meansfixedly secured to-said body and operatively` connected to said first named means. p

13. In combination with a railway car comprisingrunning'gear includinl a center member and a body mounted for Iongitudinal movement relative 4to said center member, brake mechanism for said car including means fixedly secured to said -center member and movable,therewith,-means mounted for. movement withsaid body, and flexible means .connecting -said first andsecond named means. v s

14. I'n combination with a railway car comprising a centermember and a body mounted for longitudinal movementl rela-- tive Vtofsaid member, brake mechanism for said car including means xedl secured to said center/member and inovab e therewith, means mounted o n said body and movable with 'the latter, and means operatively con-` nectin lsaidfirst and second named means, whereg relative movement.

V15. In combination with` a railway car comprisinvr a center member and a body fer" longitudinal movement relative to saidl member, brake mechanism for said carincluding means fixedly secured to said center member and movable therewith, means .mounted on said body;and v.movable therewith, and flexible means connecting said first and secondnamed means,

16. In combination with a railway `car of the longitudinally movable body type, brake mechanism for said car comprising means lf ixedly secured to the running gear of saidcar, means fixedly -secured to the body fof said car,l and" meansconnecting .said

first and second named means, said body y l'the same are permitted operative having longitudinal movement. relative to, I

said lastnamed means.

1f?. In combination with a railway car of i the longitudinally movable body type, brake mechanism for said car comprising meansA fLXedly secured to the running gear o said.

car, means fixedly secured to the body of said can and flexible means connecting said first and second named means, said bod having limited longitudinal movement relative to said iexible means.

18. In combination with a railway car of the longitudinally movable body type, brake mechanism for said car comprising means including brake rods fixedly secured to the running gear of said car, a ieXible member connecting said rods, and means secured to the body of said car and movable therewith, said last named means including a plurality of pulleys having rolling engagement withsaid flexible member.

19. In a car structure, a car body, a'center member extending substantially the length of the body and mounted for movement rela` tive to said body, yielding means for'resisting movement of the center member relative to said body, couplers movably connected to the opposite ends of the. center member, brake mechanism including a train air line section connected to said body' and a train air line section'connected to the center member adjacent the end thereof, and iexible means connecting said sections whereby the sections have operative engagement regardless of the relative movement of the center member and body.

20.'In a car structure, a car body, a center member mounted for longitudinal movement relative to said body, yielding means for resisting movement of the member relative to the body whereby draft and buiiing forces are absorbed,va coupler operatively connected to said center' member, brake mechanis'm for the structure including-a train air line section'onnccted to and movable with the body, avtrain air line section connected to the outer end of said member and movable therewith, the second named. section being adapted for connection with the air line of an adjacent coupled car, and a yielding air line section connecting said first and second named section-s.

In testimony whereof I have signed this specification.

oTHo CQDURYEA. 

